Who owns Whitehawk Therapeutics Inc (WHWK)
Which tracked institutional funds hold WHWK, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See WHWK company fundamentals →
Ownership as of the 2026-Q1 13F filings. 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on WHWK is one-sided between 2025-Q4 and 2026-Q1: 23 added or opened and 2 trimmed or exited — on balance accumulating.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
WHWK’s largest tracked holder by dollar value, QVT Financial LP, sizes it at 1.3% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 1.3pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in WHWK divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2025-Q4 and 2026-Q1, across 62 tracked filers holding WHWK, 36 increased or opened the position and 15 reduced or closed it; over the same quarter, open-market insider Form 4 buying and selling roughly offset.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in WHWK between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 6
- VANGUARD CAPITAL MANAGEMENT LLC$5M
- BALYASNY ASSET MANAGEMENT L.P.$2M
- AMES NATIONAL CORP$1M
- MILLENNIUM MANAGEMENT LLC$1M
- Woodline Partners LP$971K
- VANGUARD FIDUCIARY TRUST CO$741K
Full exits 1
- VANGUARD GROUP INC$4M
Largest adds
- QVT Financial LP$5M
- ORBIMED ADVISORS LLC$4M
- SUVRETTA CAPITAL MANAGEMENT, LLC$4M
- ACUTA CAPITAL PARTNERS, LLC$4M
- Avoro Capital Advisors LLC$3M
- KVP Capital Advisors, LP$2M
Largest trims
- STEMPOINT CAPITAL LP$289K
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| QVT Financial LP | 4,615,709 | $16M | 12.2% | 2026-Q1 |
| ORBIMED ADVISORS LLC | 4,166,000 | $14M | 11.0% | 2026-Q1 |
| SUVRETTA CAPITAL MANAGEMENT, LLC | 3,700,000 | $13M | 9.8% | 2026-Q1 |
| ACUTA CAPITAL PARTNERS, LLC | 3,410,402 | $12M | 9.0% | 2026-Q1 |
| Avoro Capital Advisors LLC | 2,849,402 | $10M | 7.6% | 2026-Q1 |
| KVP Capital Advisors, LP | 2,165,997 | $7M | 5.7% | 2026-Q1 |
| Siren, L.L.C. | 2,082,000 | $7M | 5.5% | 2026-Q1 |
| Yu Fan | 2,070,000 | $7M | 5.5% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 1,315,770 | $5M | 3.5% | 2026-Q1 |
| ACORN CAPITAL ADVISORS, LLC | 1,139,363 | $4M | 3.0% | 2026-Q1 |
| STEMPOINT CAPITAL LP trimmed | 939,369 | $3M | 2.5% | 2026-Q1 |
| Ally Bridge Group (NY) LLC | 817,939 | $3M | 2.2% | 2026-Q1 |
| BALYASNY ASSET MANAGEMENT L.P. added | 550,441 | $2M | 1.5% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 457,540 | $2M | 1.2% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 428,622 | $1M | 1.1% | 2026-Q1 |
| AMES NATIONAL CORP new | 4,571 | $1M | 1.0% | 2026-Q1 |
| BlackRock, Inc. added | 351,385 | $1M | 0.9% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 309,674 | $1M | 0.8% | 2026-Q1 |
| Eversept Partners, LP added | 306,800 | $1M | 0.8% | 2026-Q1 |
| Woodline Partners LP new | 281,497 | $971K | 0.7% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP trimmed | 273,482 | $944K | 0.7% | 2026-Q1 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 215,284 | $743K | 0.6% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 214,827 | $741K | 0.6% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 203,465 | $702K | 0.5% | 2026-Q1 |
| STATE STREET CORP added | 160,382 | $553K | 0.4% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 151,110 | $521K | 0.4% | 2026-Q1 |
| ADAR1 Capital Management, LLC added | 128,503 | $443K | 0.3% | 2026-Q1 |
| Verdad Advisers, LP new | 115,484 | $398K | 0.3% | 2026-Q1 |
| NORTHERN TRUST CORP added | 107,266 | $370K | 0.3% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 91,852 | $317K | 0.2% | 2026-Q1 |
| ACADIAN ASSET MANAGEMENT LLC added | 70,101 | $239K | 0.2% | 2026-Q1 |
| Hudson Bay Capital Management LP new | 57,597 | $199K | 0.2% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 56,912 | $196K | 0.2% | 2026-Q1 |
| Seven Fleet Capital Management LP new | 54,296 | $187K | 0.1% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 52,861 | $182K | 0.1% | 2026-Q1 |
| Qube Research & Technologies Ltd trimmed | 48,307 | $167K | 0.1% | 2026-Q1 |
| HRT FINANCIAL LP added | 34,935 | $120K | 0.1% | 2026-Q1 |
| BAILARD, INC. new | 31,398 | $108K | 0.1% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 30,090 | $104K | 0.1% | 2026-Q1 |
| Point72 Asset Management, L.P. added | 28,026 | $97K | 0.1% | 2026-Q1 |
| Catalyst Funds Management Pty Ltd added | 27,011 | $93K | 0.1% | 2026-Q1 |
| OCCUDO QUANTITATIVE STRATEGIES LP new | 22,291 | $89K | 0.1% | 2026-Q1 |
| XTX Topco Ltd added | 22,983 | $79K | 0.1% | 2026-Q1 |
| Vanguard Global Advisers, LLC new | 20,177 | $70K | 0.1% | 2026-Q1 |
| Brevan Howard Capital Management LP new | 12,589 | $43K | 0.0% | 2026-Q1 |
| OMERS ADMINISTRATION Corp new | 11,500 | $40K | 0.0% | 2026-Q1 |
| UBS Group AG trimmed | 11,438 | $39K | 0.0% | 2026-Q1 |
| PRELUDE CAPITAL MANAGEMENT, LLC trimmed | 10,283 | $35K | 0.0% | 2026-Q1 |
| MORGAN STANLEY added | 8,342 | $29K | 0.0% | 2026-Q1 |
| CITIGROUP INC added | 6,159 | $21K | 0.0% | 2026-Q1 |
| US BANCORP \DE\ | 3,333 | $11K | 0.0% | 2026-Q1 |
| OSAIC HOLDINGS, INC. trimmed | 1,639 | $6K | 0.0% | 2026-Q1 |
| BARTLETT & CO. WEALTH MANAGEMENT LLC | 1,333 | $6K | 0.0% | 2026-Q1 |
| BARCLAYS PLC added | 647 | $2K | 0.0% | 2026-Q1 |
| Russell Investments Group, Ltd. | 386 | $1K | 0.0% | 2026-Q1 |
| ROYAL BANK OF CANADA trimmed | 177 | $1K | 0.0% | 2026-Q1 |
| TD Waterhouse Canada Inc. | 232 | $814 | 0.0% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS added | 202 | $697 | 0.0% | 2026-Q1 |
| JPMORGAN CHASE & CO | 121 | $397 | 0.0% | 2026-Q1 |
| CWM, LLC | 25 | $86 | 0.0% | 2026-Q1 |
| SBI Securities Co., Ltd. added | 23 | $79 | 0.0% | 2026-Q1 |
| Parallel Advisors, LLC | 8 | $28 | 0.0% | 2026-Q1 |
| VANGUARD GROUP INC added | 1,590,117 | $4M | 3.0% | 2025-Q4 stale |
| BML Capital Management, LLC trimmed | 1,890,245 | $3M | 2.6% | 2025-Q1 stale |
| EcoR1 Capital, LLC trimmed | 1,091,417 | $2M | 1.6% | 2025-Q2 stale |
| Peapod Lane Capital LLC added | 303,585 | $577K | 0.4% | 2025-Q3 stale |
| MARSHALL WACE, LLP added | 67,959 | $164K | 0.1% | 2025-Q4 stale |
| Squarepoint Ops LLC added | 83,660 | $159K | 0.1% | 2025-Q3 stale |
| Semmax Financial Advisors Inc. new | 297 | $145K | 0.1% | 2025-Q1 stale |
| TWO SIGMA ADVISERS, LP added | 42,400 | $103K | 0.1% | 2025-Q4 stale |
| Stonepine Capital Management, LLC trimmed | 35,253 | $67K | 0.1% | 2025-Q3 stale |
| SG Americas Securities, LLC new | 36,774 | $65K | 0.0% | 2025-Q1 stale |
| ABG Innovation Capital Partners III GP Ltd | 26,666 | $65K | 0.0% | 2025-Q4 stale |
| PRUDENTIAL FINANCIAL INC trimmed | 21,800 | $39K | 0.0% | 2025-Q1 stale |
| Quadrature Capital Ltd new | 11,447 | $28K | 0.0% | 2025-Q4 stale |
| TWO SIGMA SECURITIES, LLC new | 11,103 | $21K | 0.0% | 2025-Q2 stale |
| Torren Management, LLC new | 1,254 | $3K | 0.0% | 2025-Q4 stale |
| Tower Research Capital LLC (TRC) trimmed | 797 | $2K | 0.0% | 2025-Q3 stale |
| FEDERATED HERMES, INC. trimmed | 358 | $669 | 0.0% | 2025-Q2 stale |
| GROUP ONE TRADING LLC trimmed | 100 | $242 | 0.0% | 2025-Q4 stale |
| WELLS FARGO & COMPANY/MN trimmed | 33 | $59 | 0.0% | 2025-Q1 stale |
| SVB WEALTH LLC new | 16 | $28 | 0.0% | 2025-Q1 stale |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | — | 0.0% | 2025-Q2 stale |
| SIMPLEX TRADING, LLC trimmed | 35 | — | 0.0% | 2025-Q3 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.